From 5bf4ebf122a1e35f8d3d6a1b1c38cadace586d85 Mon Sep 17 00:00:00 2001
From: Sergey Pepyakin <s.pepyakin@gmail.com>
Date: Thu, 8 Feb 2018 15:10:27 +0300
Subject: [PATCH] Not use grow as it is makes debug builds very slow

---
 src/memory.rs | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/src/memory.rs b/src/memory.rs
index 82b88ca..ba8145d 100644
--- a/src/memory.rs
+++ b/src/memory.rs
@@ -120,16 +120,14 @@ impl MemoryInstance {
 	/// Create new linear memory instance.
 	fn new(initial: Pages, maximum: Option<Pages>) -> Self {
 		let limits = ResizableLimits::new(initial.0 as u32, maximum.map(|p| p.0 as u32));
-		let memory = MemoryInstance {
+
+		let initial_size: Bytes = initial.into();
+		MemoryInstance {
 			limits: limits,
-			buffer: RefCell::new(vec![]),
+			buffer: RefCell::new(vec![0; initial_size.0]),
 			initial: initial,
 			maximum: maximum,
-		};
-
-		memory.grow(initial).expect("Initial grow should always succeed");
-
-		memory
+		}
 	}
 
 	/// Return linear memory limits.